Mary West is an American businesswoman who has an estimated net worth of $500 million.

Mary West started a company in 1978 when she and her husband, Gary cofounded WATS Marketing of America. Seven years later, she left the company and formed another venture, West Teleservices. In 1988, the company reached 1,000 employees due to the massive success of infomercials which contributed to West's growth.

With the success of West Corporation, West started the Gary and Mary West Foundation in 2006. The couple also created a medical research organization called West Health Institute in 2009.

West owns 10% of West Corporation which went public again in 2013. She contributed a lot in terms of health care for senior citizen, amounting over $350 million. In May 2016, they donated to fund a new geriatric emergency department at University of San Diedgo Health.

Mary West took up her Master's Degree at Carlson School of Management in 1988.